Air Brakes #1
Air Brakes Endorsement Test | Oklahoma 2024 #1
Train for FREE online with our Oklahoma CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a OK Class A/Class B driver license in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
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1 . During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
When performing a static leakage test on a double combination vehicle with air brakes, the leakage rate should be no more than 3 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
2 . During an inspection, slack adjusters on S-cam brakes should not move more than:
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
3 . You should test the low pressure warning signal by:
It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.
4 . If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:
If the low air pressure warning signal comes on while you are operating a vehicle with air brakes, you should stop and safely park the vehicle as soon as possible. It is essential that you are able to stop safely while you still have some braking power remaining.
5 . When you are about to start down a hill, you should switch into a ____ gear.
Before starting down a hill, be sure to switch into a low gear. Gravity will increase your vehicle's speed as you travel downhill.
6 . Air tank drains:
Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.
2024 Oklahoma | Frequently Asked Questions
A CDL Class A license in Oklahoma is defined as a commercial driver's license that allows the holder to operate any combination of vehicles weighing over 26,001 pounds, provided the vehicle(s) being towed exceed 10,000 pounds. This typically includes tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers.
A Class A CDL license in Oklahoma allows drivers to operate vehicles such as tractor-trailers, truck and trailer combinations, flatbeds, livestock carriers, and tank vehicles. It also covers any combination of vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, provided the towed vehicle is heavier than 10,000 pounds.
To obtain a Class A CDL license in Oklahoma, you must be at least 18 years old (21 for interstate driving), have a valid Oklahoma driver's license, pass a vision test, and successfully complete written and skills tests. You also need to pass a Department of Transportation (DOT) medical examination and provide proof of identity, residency, and Social Security number.
In Oklahoma, you must be at least 18 years old to obtain a Class A CDL license for intrastate (within state) driving. However, for interstate (across state lines) or hauling hazardous materials, federal regulations require drivers to be at least 21 years old. Additionally, you must pass a medical examination and have a clean driving record.
Endorsements are not required for a Class A CDL license in Oklahoma but are necessary if you plan to drive certain types of vehicles or carry specific cargo. For instance, H endorsement is needed for hazardous materials, T for double/triple trailers, P for passenger vehicles, and N for tank vehicles. Each endorsement requires an additional knowledge test.
The Class A CDL skills test in Oklahoma encompasses three parts: the pre-trip inspection, basic vehicle control, and on-road driving. The pre-trip inspection tests your ability to assess your vehicle's safety. Basic vehicle control evaluates your ability to maneuver and control the vehicle. On-road driving assesses your ability to safely drive the vehicle in various traffic situations.
Yes, there are limitations. Class A CDL license holders in Oklahoma cannot drive a motorcycle or moped unless they have a motorcycle endorsement. They also cannot operate a school bus without a school bus endorsement. Additionally, certain medical conditions may restrict your ability to drive commercial vehicles and any violations may result in temporary or permanent disqualification.
In Oklahoma, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish. It's important to check with your local testing center for language availability. Please note, all drivers must be able to read and understand road signs printed in English.
Yes, accommodations can be made for individuals with disabilities taking the Class A CDL written test. You need to notify the Oklahoma Department of Public Safety in advance about your specific needs. Accommodations can include extra time, a separate testing room, or having the test read aloud. However, all requests are subject to approval and must comply with federal regulations.
Yes, if you don't pass the Class A CDL written test in Oklahoma, you can retake it. However, you must wait at least one day before retaking the test. If you fail the test three times, you'll need to wait 30 days before your next attempt. Remember, each attempt requires a new test fee.